Filter



Feb. 25, 1930. G. s. PALMER ET AL FILTER Filed Sept. 18, 1928 INVENTOR GEORCLE 5 PALMER. BYJERO E 0LMAN M 2 "M ATTORNEY' .nll l 8 reservoir 12.

I tion 32 and cone 33. The ends of this pipe are r well known, is a considerable advantage in the The container 16 is somewhat deeper than the container 15 so that a compartment 31 will be formed between the bottom of the con-' tainer 15 and the bottom of the container 16. Filter sand and gravel is disposed in this compartment 31 as illustrated.

The bottom of the container 16 is formed with a conical center portion 32 which projects upwardly into the container as illustrated in Fig. 1. This conical portion and the bottom of the container 16 are imperforate. Arranged over the conical portion 32 is a cone 33 constructed so that its inner surface will be spaced from the interior surface of the conical portion 32. Adjacent the base of the cone 33 it is formed with a series of perforations 3 1 so that the water passing through the filter sand and gravel may enter the space between the cone 33 and the conical portion 32 of the bottom of the container 16.

The water may then pass upwardly in this space to the apex of the cone where it may enter through ports 35 into a pipe 36 which extends vertically'through the conical poropen and the upper end thereof extends to a point above the filter sand and gravel, and

the lower end terminates short of the bottom of the secondary reservoir 12. The water passing through the perforations 34 to the space between the cone 33 and the conical portion 32 must travel upwardly to the apex of the cone before entering the pipe 36 and discharging into the secondary reservoir12. This prevents any sand from being carried from the'compartment- 31 to the secondary reservoir 12. v

The water passing through the ports 35 into the pipe 36 creates a slight suction at the upper end of the pipe, causing air to travel down the pipe and mingle with the water, thoroughly aerating the same. This, as is purification of drinking water.

The water may be withdrawn from the secondary reservoir 12 for use in any preferred manner. In this instance we show a spigot 37 communicating with the interior of the secondary reservoir 12 at the bottom thereof.

It will be noticed that all of the parts of the present filter are merely set in place and therefore some .means must be provided for clamping the same together to prevent displacement. .The means here shown comprises a pair of lugs 38 arranged at diametrically opposite points within the primary reservoir .11. A transverse bar- 39 is provided which is of a length slightly less than the interior dimension of the primary reservoir 12 but longer than the spacing between the lugs 38. A compression screw 40 projects through this bar at the center thereof and bears against the filter pad holder which is disposed within the upper end of the container 15.

When the ends of the bar 39 are engaged with the underside of the lugs 38, the pressure of the screw 40 will be sufficient to clamp the container 15 and the parts carried therein in place. The weight of the primary reservoir 11 and its associate elements bears directly on the flange 30 of the container 16 which abuts on the upper end of the secondary reservoir 12. The weight of the parts mentioned is sufficient to maintain the parts in their proper relation under normal circumstances.

In operation of the device, it is assembled as shown in the drawings and the water to be filtered is placed in the primary reservoir 11. This water will pass through the perforations in the cover 35 thence through the filter pad 2 1 through the perforations in the filter pad holder to thechamber 27 between the filter pad holder and the filter stone. The water will then filter through the filter stone, pass through the charcoal in the compartment 29 and through the perforated bottom of the container 15.

After passing from the container 15 into the container 16 the water will pass through the filter sand and gravel and enter through the perforations 34 to the space between the cone 33 and the conical portion. 32 of the bottom of the container 16. The water will then air to be withdrawn into the pipe to mingle with the water passing through the plpe. This will cause the water to be aeratedwhich aids in its purification. v V

In the event that the filter shouldbecome clogged overflow ports 41 are provided at the top of the container 16 so that the water may pass directly into the secondary reservoir;1 12 without passage through the filter san One of the principal features of the present invention is its construction and the man ner of assembling it, so that all of the parts may be quickly removed for cleansing. This maybe done by the housewife as it is only necessary to disengage the bar 39 from the lugs 38 and then withdraw the container 15 from the primary reservoir 11. The pad 24, the filter stone 21 and the charcoal compartment'29 may then be thoroughly cleansed and sterilized. The primary reservoir 11 may then be removed so that the container 7 16 may be removed andthe filter sand and emme;-

ter is considerably'improved over prior filters of the same type as it may be readily and quickly cleansed and does not need an expert to disassemble it and cleanseor replace the filtering mediums. v

While we have shown the preferred. form of our invention, it is to be understood that various changes may be made in its construction by those skilled in the art without departing from the spirit of the invention as defined in the appended claims.

Having thus described our invention, What we claim and desire to secure byLetters Patent is:

1. A filter of the class described comprising a primary reservoir, a secondaryresen' voir, filtering means. removably suspended from the primary reservoir and through which water will pass by gravity to the secondary reservoir, said filtering means comprising a container suspended from the primary reservoir, said container having a filter pad, a charcoal compartment and a filter stone interposedbetween the charcoal com partment and the pad, and means for removably clamping the filter pad and the filter stone in the container and simultaneously clamping the container to the primary reservoir.

2. A filterof the class described compris-' ing a primary reservoir, a secondary reservoir, filtering means removably suspended.

from the primary reservoir and through which water will pass by gravity to the secondary reservoir', said filtering means comprlslng a container suspended from the primary reservoir, said container having a filter pad, a charcoal compartment and a filter stone interposed between the charcoal compart-ment and the pad, andmeans for removably clamping the filter pad'and the filter stone in the container and simultaneously clamping the container to the primary reservoir, said clamping means comprising lugs projecting inwardly from the sides of the reservoir at diametrically opposed points, a transverse bar adapted to engage thebottom of the lugs, and a clamping screw projecting through the bar and engaging the container.

3. A filter of the class described comprising a primary reservoir, a secondary reservoir upon which the primary; reservoir is positioned, saidprimary reservoir having an opening formed through its bottom, a container having a circumscribing flange suspended through said opening with the flange bearing around the margin of the openmg,

. the bottom of said container'being perforated, filtering mediums in saidcontainer,

means for simultaneously clamping the filtering mediums in the container and clamping the container to the prlmary reservolr, a secondary container arranged concentrically to the first-named container, said sec ondary container having aflange interposed etneeathe lessees tests at the and secondary reservolrs, said secondarye @9117;

miner", harms fi t ing med um; z-the ei roug which; the W ngthe; W ter tii ischiargesi from the ndary; container into the se dary m ervoir. I

ter-rassingrfiremr he rst; contamer W111.- nasaand m ans or it a a A filter Qttheclass des r be ng p e y sen im a. secondary. ser

voir ripen irl liic q. heprimary; reservoi fizpbn. l l r ry re raoir. having an,

openingyxformed through. its butt-01 a 6Q, tamer having a c rcumscribing; flangependied through. ,saldaopening wi the bottom ofr-said containerbeingperiiorated,

I filtering mediumsin saidicontainer, means for simultaneously: clampi ngtheg filtering medFi;-. ums in the container and. clamping the. cone tnthe; flange. bearing; around. the marg n ofh P ii a tainerato. the primary reservoin; a second-any;

container arranged concentrically to the firsts.

named; container, said secondary container having a flange interposed; between the meet-. ing facesof the primary and secondary reser-v voirs, said secondary container havingra. filteringrmedium. therein through. which: the water passing f-romjthe; first. container. willi pass, means for aeratingthe watenasiit dis:

chargesf-rom. the. secondary container into. the secondary reservoir, saldz means. .com ns.

ing-a p-i-pe extending vertically-through, the.

endsof the pipe extending short of the bottom of the secondary reservoir.

5. A filter of the; class described comprisvoir arranged therebeneath, said primary reservoir having a circular opening formed through the bottom thereof, a container suspended through'said opening, said container having a circumscribing flange at its upper endbearing on the bottom of the primary reservoir atthe marginal edge of the opening, a second container of a diameter larger than the first-named and arranged 165. mg a primary reservoir, a secondary reserconcentric thereto, said second container beingsuspended within the secondary reservoir, a flange circumscribingthe upper end of said secondary container and bearing on the top of the secondary reservoir, the

primary reservoir being set on said flange v of the secondary container, said first and secondary containers being equipped with removable filtering mediums, means for simultaneously clamping the filtering mediums in position within the first container and clamping the first container to the primary reservoir, said containers being adapted to permit water to pass from the primary reservoir throughthe filtering mediums in the consuspended through said opening, said containers and thence into the second reservoir by gravity.

6. A filter of the class described comprising a primary reservolr, a secondary reser vo1r arranged; therebeneath, SELlCl primary reservoir having a circular opening formed through the bottom thereof, a contalner tainer having a circumscribin'g flange at its jupper end bearing on the bottom of the primary reservoir at the marginal edge of the opening, a second contalner of a d1ameter larger than the first-named and arranged concentric thereto, said second container being suspended Within the secondary reservoir, a

flange circumscribing the upper end of said secondary container and bearing on the top of the secondary reservoir, the primary reservoir being set on said flange of the secondary container, said first and secondary containers being equipped with removable filtering mediums, means for simultaneously clamping the filtering mediums in position Within the first container and clamping the first con- "tainer to the primary reservoir-,said containers being adapted to permit Water to pass from the primaryreservoir through the filtering mediums in the containers and thence into the second reservoir by gravity,

3 and means carried by the second container for aerating thevvater as it. passes from the second container to the secondary reservoir.

GEORGE S. PALMER.

JEROME N. COLEMAN. 

